Apparatus for providing light shielding in a liquid crystal display
First Claim
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1. A liquid crystal device, comprising:
- a liquid crystal device substrate including a display region in which pixels are formed in a matrix by a plurality of light shielding data lines and a plurality of scanning lines, a peripheral driving circuit connected to at least one of the data lines and the scanning lines on an outer peripheral side of the display region, and a plurality of thin film transistors connected to the data lines and the scanning lines, and a liquid crystal held between the liquid crystal device substrate and an opposite substrate;
a peripheral partitioning light shielding film formed in an outer peripheral of the display region;
a plurality of conductive first light shielding films for shielding respective channel regions of the thin film transistors, the plurality of conductive first light shielding films being formed below at least the respective channel regions of the thin film transistors so as to extend along the scanning line; and
a constant potential wiring connected to the peripheral driving circuit, the constant potential wiring electrically connected to the conductive first light shielding films, the films are connected with each other and below the peripheral partitioning light shielding film.
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Abstract
A leak current due to the effect of light reflected by a polarizing plate or the like is suppressed in pixel switching TFTs in a liquid crystal device and a projection type display device comprising the liquid crystal device, and the characteristics of pixel switching TFT are stabilized. In a liquid crystal device substrate of a liquid crystal device, a first light shielding film is provided below at least the channel region of pixel switching TFTs, extending along scanning lines and connected to constant potential wiring for supplying a constant potential on an outside of the pixel region to fix the potential of the first light shielding film.
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15 Claims
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1. A liquid crystal device, comprising:
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a liquid crystal device substrate including a display region in which pixels are formed in a matrix by a plurality of light shielding data lines and a plurality of scanning lines, a peripheral driving circuit connected to at least one of the data lines and the scanning lines on an outer peripheral side of the display region, and a plurality of thin film transistors connected to the data lines and the scanning lines, and a liquid crystal held between the liquid crystal device substrate and an opposite substrate;
a peripheral partitioning light shielding film formed in an outer peripheral of the display region;
a plurality of conductive first light shielding films for shielding respective channel regions of the thin film transistors, the plurality of conductive first light shielding films being formed below at least the respective channel regions of the thin film transistors so as to extend along the scanning line; and
a constant potential wiring connected to the peripheral driving circuit, the constant potential wiring electrically connected to the conductive first light shielding films, the films are connected with each other and below the peripheral partitioning light shielding film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification